Home / 22,438.80-30,965.75-12,367.60

Finding the Fourth Proportional to 22,438.80, 30,965.75 and 12,367.60

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Solution

The fourth proportional to 22,438.80, 30,965.75 and 12,367.60 is: 17,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,438.80 : 30,965.75 = 12,367.60 : x
  2. Step 2: Convert to fraction form
    22,438.80/30,965.75 = 12,367.60/x
  3. Step 3: Cross multiply
    22,438.80x = 30,965.75 × 12,367.60
  4. Step 4: Simplify right side
    22,438.80x = 382,971,963.20
  5. Step 5: Solve for x
    x = 382,971,963.20/22,438.80
  6. Step 6: Final answer
    x = 17,067.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.